Any creature striking the grim with its body or a handheld weapon deals damage as normal, but at the same time the attacker takes 1d6 points of damage +1 point per 2 grim class levels. Upon taking this Alteration, the grim much choose either acid, cold, fire or electricity. Creatures wielding weapons with exceptional reach are not subject to this damage if they attack the grim.Special: A grim may not take this Alteration without first taking Energy Resistance even if he has energy resistance from another source.